anyone ever used any one those altitude tents

[snoopdhani]

that simulate sleeping at altitude?
The ones that have a generator etc.

[gobriango]

Yes and if you look back far enough you will find the thread on it.

[ExcitibleBoy]

I climbed Rainier with a fellow, Brian Oestrike, who was sponsored by Hypoxico, a manufacturer of hypoxic tents and stuff. He uses one of the products and has done some pretty amazing things, like a solo ascent of Lhotse with only a single bottle of O2, Everest, and Aconcagua within 60 hours of landing in Argentina. He was very fast on Rainier too.

[MarthaP]

You don't mean the Gomaw?

I saw Jake Norton on Sunday and asked him to demonstrate...

[pinscar]

No, he's talking about the tents you put around your bed to simulate sleeping at a higher altitude than where you might live.

A Gamow bag is a used in the treatment of HAPE/HACE and affects a higher atmospheric pressure, therefore a lower altitude.

[FortMental]

The theory behind those things is bullshit. There is ZERO benefit to sleeping at a simulated low O2 partial pressure. It may even be detrimental to a body (that normally recovers) during sleep. Those that do amazing high altitude feats, would have done them breathing farts.

[snoopdhani]

i read that lance armstrong uses one as well.

[gobriango]

[pinscar]

[FortMental]

[MoapaPk]

Where can you get the tents that let you breathe farts?

[FortMental]

[MoapaPk]

[FortMental]

The following can be found at this San Diego State University Link

Volume 14(4): February, 2009

ALTITUDE TRAINING 5

Coaching Science Abstracts is the fourth issue that reviews articles concerned with altitude training. It adds to the abstracts presented in Volume 2(4), Volume 5(4), Volume 8(4), and Volume 11(4). Many of the research problems noted in those issues persist to this day.



TABLE OF CONTENTS

ALTITUDE ADAPTATION
MODERATE-ALTITUDE-ADAPTED INDIVIDUALS HAVE NO ADVANTAGES FOR HIGHER ALTITUDE ADAPTATIONS

Beidleman, B. A., Fulco, C. S., Zupan, M. F., Muza, S. R., Rock, P. B., Payn, T., Hannon, M., & Cymerman, A. (2005). Sea level and moderate altitude residents experience a similar decrement in VO2peak upon ascent to 4300 m. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 1555.

ALTITUDE TRAINING REDUCES LEAN BODY MASS

Sucec, A. A., Hodgson, J. A., Hazard, A. A., & Roy, B. A. (2006). Body mass and lean body mass loss during residence at moderate altitude (2450 m) in female and male runners. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2727.

CYCLIC VARIABLE ALTITUDE CONDITIONING INCREASES ARTERIAL OXYGEN SATURATION

Hetzler, R. K., Sargent, R. W., Kimura, I. F., Burgess, L., LaBotz, M., Nichols, A., & Nakasone, K. (2006). The effect of a cyclic variable altitude conditioning program on arterial oxygen saturation acclimation. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2733.

CHILDREN'S HEART RATE RESPONDS DIFFERENTLY TO ADULTS AT ALTITUDE

Kriemler, S., Zehnder, M., Kohler, M., Brunner, H., & Boutellier, U. (2006). Maximal aerobic performance of prepubertal children upon fast ascent to high altitude. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2739.

INTERMITTENT ALTITUDE EXPOSURE IS AS ADAPTIVE AS CONSTANT EXPOSURE

Beidleman, B. A., Muza, S. T., Fulco, C. S., Cymerman, A., Sawka, M. N., Lewis, S. T., & Skrinar, G. S. (2008). Seven intermittent exposures to altitude improves exercise performance at 4300 m. Medicine and Science in Sports and Exercise, 40, 141-148.

ALTITUDE RESIDENTS RESPOND TO SEA-LEVEL EXERCISE DIFFERENTLY TO SEA-LEVEL RESIDENTS

Brothers, M. D., Hilger, K., Carson, J. M., Sullivan, L., & Byrnes, W. C. (2007). GXT responses in altitude-acclimatized cyclists during sea-level simulation. Medicine and Science in Sports and Exercise, 39, 1727-1735.

BLOOD FACTORS INCREASED BY LOW ALTITUDE TRAINING

Frese, F., Eisenkolb, E., Schmidt, W. F., Bartsch, P., & Friedmann, B. (2008). Effects of repetitive training at low altitude on erythropoiesis in elite 400 m and 800 m runners. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1266.

ALTITUDE EXPOSURE STIMULATES INCREASED EPO IN DISTANCE RUNNERS

Chapman, R. F., Derchak, P. A., Stager, J. M., Stray-Gundersen, J., & Levine, B. D. (2008). Erythropoietin production at moderate altitude in elite endurance athletes is not mediated by peripheral chemoresponsiveness. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1267.

ERYTHROPOIETIN RESPONSE TO ALTITUDE NOT ASSOCIATED WITH HEMOGLOBIN CHANGES IN TRAINED ATHLETES

Friedmann, B., Frese, F., Menold, E., Kauper, F., Jost, J., & Bartsch, P. (2005). Individual variation in the erythropoietic response to altitude training in elite junior swimmers. British Journal of Sports Medicine, 39(3), 148-153.

STAGING AT MODERATE ALTITUDE ACCLIMATES INDIVIDUALS TO PERFORM BETTER AT HIGHER ALTITUDES

Fulco, C. S., Muza, S. R., Beidleman, B., Jones, J., Lammi, E., Kambis, K., Doan, B. K., Brothers, M. D., Zupan, M. F., & Cymerman, A. (2008). Living for six days at 2,200 m improves prolonged time-trial performance of sea-level residents exposed to 4,300 m. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1273.

ALTITUDE AND PERFORMANCE
MODERATE HYPOXIA DOES NOT AFFECT VERY SHORT SPRINT PERFORMANCES

Friedman, B., Frese, F., Menold, E., & Bartasch, P. (2005). Effects of acute moderate hypoxia on anaerobic capacity in endurance-trained runners. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 1547.

INTERMITTENT HYPOXIA OF LITTLE VALUE TO RUGBY PLAYERS PERFORMING AT ALTITUDE

Hamlin, M. J., Hinckson, E. A., Wood, M. R., & Hopkins, W. G. (2004). Effect of intermittent normobaric hypoxic exposure at rest on rugby players' performance at 1650 m. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2731.

INTERMITTENT HYPOXIA DOES NOT AFFECT MOVEMENT SPEED BUT DOES AFFECT POWER

Wood, M. R., Hamlin, M. J., Hinckson, E. A., & Hopkins, W. G. (2006). Physical performance after adaptation to different protocols of intermittent hypoxia. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2732.

TRAINING, NOT HYPOXIC EXPOSURE, INFLUENCES PERFORMANCE

Austin, K. G., Haymes, E., Hansen, J., & Laird, M. (2006). The effect of intermittent hypoxic exposure on hematological markers and exercise performance. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 903.

INTERMITTENT HYPOXIC TRAINING COULD BE DETRIMENTAL TO SEA-LEVEL RUGBY PERFORMANCE

Hinckson, E. A., Hamlin, M. J., Hopkins, W. G., & Wood, M. R. (2006). Effect of intermittent normobaric hypoxic exposure on sea-level performance in rugby players. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 907.

HYPOXIC TRAINING DOES NOT IMPROVE SEA-LEVEL CYCLING PERFORMANCE

Roels, B., Bentley, D. J., Coste, O., Mercier, J., & Millet, G. P. (2006). Effects of intermittent hypoxic training on altitude and sea-level cycling performance in well-trained athletes. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 908.

MUCH INDIVIDUAL AND GENDER VARIATION IN MODERATE-ALTITUDE RESIDENTS WHEN EXPOSED TO SEA-LEVEL

Brothers, M. D., Hilger, K., Carson, J. M., Sullivan, L., & Byrnes, W. C. (2007). GXT responses in altitude acclimatized cyclists during sea level simulation. ACSM Annual Meeting New Orleans, Presentation Number, 922.

QUALIFIED INCREASE IN SUBMAXIMAL PERFORMANCE FOLLOWING ALTITUDE TRAINING

Martin, D. T., Quod, M., Garvican, L. A., Etxebarrial, N., Stephens, B., Impellizzeri, F. M., Rampinini, E., Sassi, A., & Gore, C. J. (2008). Cycling economy following a 3-wk natural altitude training camp (~2700 m) in nationally competitive cyclists. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1265.

ALTITUDE TRAINING IS NOT BENEFICIAL FOR SEA LEVEL PERFORMANCE AND ALSO INVOLVES CONSIDERABLE RISKS

Bailey, D. M., & Davies, B. (1997). Physiological implications of altitude training for endurance performance at sea level: A review. British Journal of Sports Medicine, 31(3), 183-190.
LIVE HIGH (Hypobaric Hypoxia) - TRAIN LOW (Normobaric Normoxia)

ALTITUDE TENTS HAVE LITTLE VALUE FOR CYCLING PERFORMANCE

Martin, D. T., Kinsman, T., Eastwood, A., Platt, M., Paton, C., & Hahn, A. G. (2005). Altitude tents do not impair performance response to short-term high-intensity cycling training. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 1548.

HYPOXIC SLEEPING IS RELATED TO IMPROVED RUNNING ECONOMY

Neya, M., Maegawa, T., Kumai, Y., Enoki, T., & Kawahara, T. (2006). The effects of nightly normobaric hypoxia on running economy and hemoglobin mass. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2728.

SHORT-TERM BRIEF EXPOSURES TO SIMULATE HYPOXIA HAVE LITTLE EFFECT

Katayama, K., Sato, K., Hotta, N., Ishida, K., Iwasaki, K.-I., Miyamura, M. (2006). Effect of intermittent hypoxia on exercise ventilation at a simulated moderate altitude. Medicine and Science in Sports and Exercise, 38(5), Supplement abstract 2730.

HYPOBARIC HYPOXIA DOES NOT IMPROVE SUBMAXIMAL PERFORMANCE IN TRAINED ATHLETES

Truijens, M. J., Rodriguez, F., Townsend, N. E., Stray-Gundersen, J., Gore, C., & Levine, B. D. (2008). The effect of intermittent hypobaric hypoxic exposure and sea level training on submaximal economy in well-trained swimmers and runners. Journal of Applied Physiology, 104, 328-338.

NORMOBARIC EXPOSURE DOES NOT ALTER HYPOBARIC AEROBIC PERFORMANCE

Muza, S., Fulco, C., Beidleman, B., Jones, J., Staab, J., Elliott, S., Lammi, E., & Cymeerman, A. (2009). Lowlander time-trial performance at 4300 m is not improved following normobaric intermittent hypoxic exposure conditioning. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1263.

HYPOBARIC HYPOXIA STIMULATES PULMONARY VENTILATION (VEmax)

Ogawa, T., Fujii, N., Kurimoto, Y., Honda, Y., & Nishiyasu, T. (2008). The effect of hypobaria on ventilation and VO2max during maximal running. ACSM 55th Annual Meeting Indianapolis, Presentation Number, 1268.
GENERAL

LOW OXYGEN CONCENTRATIONS STIMULATE MORE ANAEROBIC ENERGY

Ogura, Y., Katamoto, S., Uchimaru, J., Naito, H., & Aoki, J. (2005). Effects of different levels of hypoxia on anaerobic energy release during supramaximal exercise in trained athletes. Medicine and Science in Sports and Exercise, 37(5), Supplement abstract 1552.

ALTITUDE SIMULATION DOES NOT STIMULATE EXTRA ERYTHROPOIETIN

Ashenden, M. J., Hahn, A. G., Martin, D. T., Logan, P., Parisotto, R., & Gore, C. J.(2001). A comparison of the physiological response to simulated altitude exposure and r-HuEpo administration. Journal of Sports Science, 19, 831-837.

INTERMITTENT HYPOXIA DOES NOT DISRUPT TESTING FOR RECOMBINANT HUMAN ERYTHROPOIETIN

Abellan, R., Ventura, R., Remacha, A. F., Rodriguez, F. A., Pascual, J. A., & Segura, J. (2007). Intermittent hypoxia exposure in a hypobaric chamber and erythropoietin abuse interpretation. Journal of Sports Science, 25, 1241-1250.

HYPOXIA REDUCES THE POTENTIAL OF MUSCULAR ENDURANCE WORK

Matsura, C., Gomes, P. S., Hayknowsky, M., & Bhambhani, Y. (2007). Cardiorespiratory responses to resistance exercise under hypoxia in healthy subjects. ACSM Annual Meeting New Orleans, Presentation Number, 921.

MODERATE ALTITUDE ACCLIMATIZATION INCREASES PROTEIN EXCRETION FOLLOWING SPRINT-TYPE EXERCISES

Luetkemeier, M. J., LaPorte, J. A., & Davis, J. E. (2007). Proteinuria after sprint and endurance-type exercise at moderate altitude. ACSM Annual Meeting New Orleans, Presentation Number, 924.

HEMOGLOBIN INCREASES DO NOT IMPROVE PERFORMANCE OR VO2max

Calbet, J. A., Radegran, G., Boushel, R., Sondergaard, H., Saltin, B., & Wagner, P. D., (2002). Effect of blood haemoglobin concentration on VO2max and cardiovascular function in lowlanders acclimatized to 5260 m. Journal of Physiology, 545(Part 2), 715-728.



.....Any questions?

[FortMental]